Impulse-transmitter.



J. A. WOTTON.

IMPULSI.: TRANSMITTER.

APPLICATION FILED JUNE 14, 1912. 1 1 17,29@ Patented Nov. 1'?, 1914.

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uunlllll lllllllm atraer JTLU'EES A. WOTTON. OF MONTCLAR, NEW JERSEY, ASSIGNOR TO WESTERN ELECTC CCMEANY, F NEW YORK, N. Y., A GGEPORATON OF ILLINOIS. I

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Speeeaton of Letters Patent.

'Patented Nov. i7, ilsh Application filed June le, 1G12. Seria No. 793,685.

To all whom t may concern lie it known that i, Janus A. lilorrou, citizen or the United States, residing at iiiontelair, in the county of Essex and Sta-te of New Jersey, have invented .a certain new and useful improvement in impulse-Transmitters, of which the following is a full, clear, concise, and exact description.

This invention relates to Current impulse transmitters, and more particularly to a transmitter' adapted to be actuated tesend out any one of a plurality of combinations of current impulses over aline to which are connected eleotroresponsii'e selective instruments.

The object of this invention is to provide an impulse transmitter which will be oompaot, sure and quick in its operation and easily and speedily adj usted to send out any particular code of impulses.

The impulse transmitter to which this insired number or combination of Current iin-- pulses and other details of construction and combination of parts as will hereinafter more fully appear.

In the drawings illustrating this invention-Figure l. is a horizontal sectional View taken upon line l-i -of Fig. 3; Fig. 2 is a front elevation illustrating the relation of the dial plates and pointers; Fig. 3 is a rear end rienv illustrating the gears and cover plates; and Fig. #i is a detail sectional View taken upon line 4 4 of Fi g. 3.

in said drauingsh 5 designates a plate upon which is mounted a frame Comprising frame-plate members 6 and 7 secured together by rods 8, Supported in the plates 6 and '7 are shafts 9 and l0, the shaft 9 constituting a driving shaft, and the shaft y l0 the driven shaft of ythe mechanism.

Loosely mounted upon the shaft 9 is a gear Wheel l2 adapted to be drivenbyv a spiral spring 13 mounted upon said shaft. Said gear Wheel l2 meshes with a pinion 16 on the shaft l07 which pinion .is seeuredto a gear Wheel 17 on said shaft l0, said gear Wheel 17 being in mesh with a pinionI i8 loosely mountedupon the shaft 9 and seoured to a gear Wheel 19. The gear Wheel i9 meshes With a gear 20 secured to the shaft l0..l The gear 20 meshes with a Worm on a governor shaft'QQ arranged at right angles to the shafts 9 and l0 and supported between projections 23, Q3 formed integrally With the frame plate 7. The governor' con; sists of two Weighted spring arms Q-il and which, as the governor is rotated, are ea-used to throw their Weights outwardly against the inner face of a metal drum 2G. The frietion of the Weights and drum tending to retard the movement of the rotating parts and keep them at a constant speed.

n the design of transmitter shown the impulse mechanism is arranged to put first a preliminary long impulse upon the line, next a succession of short impulses? then to open the line circuit for a short periodl sue eeeded by an impulse of substantially the same length as the first preliminary impulse, next a requisite number of short irni pulses and then maintain ,battery on the line for av certain period thereafter. The speeifio mechanism for accomplishing this is as' follows: Mounted upon the shaft 10 beyond the frame plate 7 and adapted to rotate with said shaft is a Wheel er1-'fdisk 30 having formed on a portion of itsl'periphery a plurality of teeth 31, 3l Which areadapted to cooperate with 'spring contacts 3Q- and 83 to alternately make' and break a Circuit.

Rotatably mounted upon 'the shaft 10 back of said wheel or disk 30 is an 'adiustn able member 35 normally attached to rotate with said Wheel or disk 30 by means of a bowed spring 36 secured to said member and being formed to engage depressions 377 37 inthelfaee of the Wheel or disk 30. This adjustable member 35 is for the purpose of regulating the number of teeth on the Wheel or disk '30 Which will maire and brealroontaet betvveen springs 32 and 33 and forthis purpose is provided with a portion having the same radius of curvature as the said Wheel or'disk-SO which extends fiusn with the outer end of y the teeth 3i, Si of said v.ta

wheel or disk. Adjacent to this portion said adjustable member is provided in its periphery with teeth 38, 38 adapted to engage the contact springs 32 and 33 in the same manner as the teeth 31, 31 of said wheel or disk 30. The disk and adjustable member 35 are provided' with teeth 34 and 39 respectively of greater width than the teeth 31, 31 and 38, 38 for a purpose hereinafter to be explained. Rotatably mounted upon,A the shaft 10 to the rear of the adjustable member 35 is a second adjustable member 40 adapted to be moved to cover the teeth 38, 38 of the adjustable member35. l1 and 42 designate projections' formed integrally with the member 35 which serve as stops to limit the movement of the adjustable mem,- ber 40.

The meansprovided for the adjustment of the two adjustable members 35 and 40 with'respect to each other and with respect to the wheel or disk 30 is as follows:

Rotatably mounted upon the shaft 10 is a gear wheel 50 which is secured to the ad-V justable member 35 by means of a pin 51 or other suitable means located out of the path of travel of the adjustable member ad. This gear wheel 50 is in mesh With a gear wheel 52 carried by a rotatable sleeve 53 extending through the front plate 5 for the purpose hereinafter set forth. Rotatably mounted upon the shaft 10 to the rear of the gear wheel 50 is a gear wheel 55. This gear wheel is operatively connected with the adjustable member 40 by means of a pin 56 which is secured in the gear 55 and extending through a slot 57 in the gear 50 and through an opening 58 in said adjustable member l0 into a slot 59 in the adjustable member/35, as clearly shown in Fig. 4. The gear wheel 55 is in mesh with a gear wheel 60 secured toa shaft or spindle 61 rotatably mounted in the sleeve 53. As shown the said shaft 61 is reciprocally mounted in the sleeve 53l and normally held in an outward position by means of a coilf'spring 62 engaging a sleeve 63 secured in a knob 6d and the outer end of the sleeve 53. Tn this position of these parts a screw pin 65 in the gear ,wheel 60 is in engagement with one of a plurality of holes 66, 66 in the adjacent face of the gear Wheel 52 on the sleeve 53 thus locking the gear wheels 52 and 60 together so that the turning otn'the knob'64 in this position of the parts will rotate both saidgear Wheels.

Secured to the sleeve 53 is a pointer 70 adapted as said sleeve is turned to register with characters on a dial plate 71 secured to the plate 5. Stamped upon the pointer are a series of characters with which a pointer-7 2 carried by the knob 64 are adapted to register. The characters on the dial plate 7-1 desi-gnatethenumber of teeth on the wheel or disk 30 which will be edective yfor callingI pmpos'eslnone revolution ot rimane position the circuit interruptions will be as follows in the operation of the transmitter: First, a long impulse caused by the passage of the tooth 34 under the spring 32; next a series of quick makes and breaks caused by the passage of the teeth 31, 31 under the spring 32, this to be succeeded by a closure 'of long duration while the periphery of the adjustable member 35, which covers the remainingteeth 31, 31 of the wheel or disk 30, is passing under the spring 32; next a momentary opening of the circuit when the spring 32 drops into a notch just prior to its engagement with the tooth 39, succeeded by a closure equal to the time' required for the said tooth to pass under the spring 32, a momentary break .occurring just before the first of the teeth 38, 38 engages the.

spring 32 followed by a long closure caused by the engagement with the spring 32 with ,the periphery of the adjustable member 40. ssuming now that it is desired to adjust the parts, say, so that the number of successive quick impulses produced by the wheel or disk 30 will be nine and that produced by the adjustable member 35 will be three. The operation will first turn the knob 6d until the pointer 70 is opposite the index character nine on the dial plate 71. This will turn both the gear wheels 52 and 60 and with them the gear wheels 50 and 55. The rotation of the gear wheels 50 andA 55 will rotate both the adjustable members 35 and 40 without changing their relation until the adjustable member has uncovered eight of the teeth 31, 31 of the gear or disk 30 or three more thanare now shown as uncovered. The next operation will be to press the knob 64 inwardly which will move the gear 60 away from the gearl 52 thus disengaging these two gears by moving the pin 65 out of engagement with a hole 66 in the gear wheel 52. T the knob is now rotated until the pointer 72 is opposite the character three on the pointer 71 only the gear wheels 60 and 55 will be rotated, thus moving the adjustable member 40 to uncover two more teeth than are now shown as uncovered or three notches between teeth. The knob Gat is then released and the shaft 61 is moved outwardl until the pin 65 in the gear 60 engages theth'ird hole in the gear 52. The

iaraeee mechanism is then started by means of the handle 75 and rotates the mechanism through one complete revolution. It will be noted that whatever the number ci' teeth uncovered. on either of the toothed members the length of time that the contacts are held` closed after theipassing thereunder of the teeth 3l, 3l and before it reaches the teeth or" the adjustable member 35, is also as constant as is also the length of time that the contacts 32 and 33 are maintained closed atter the passing thereunder of the exposed teeth of the said adjustable member 85. The gear Wheel 60 is made of suiiicient thickness so that the amount of movement thereof necessary to disengage the pin 65 from the gea-r wheel 52 will not move the teeth of said gear Wheel 60 out of mesh With the teeth of the gear Wheel 55.

What claim is:

l. In an impulse transmitter the combination with a motor-driven shaft, of a toothed Wheel carried by said sha-ft, contact springs adapted to be engaged by the teeth of said Wheel for making and breaking a circuit, an adjustable member for determining the number of teeth on said wheel edective for signaling purposes, said adjustable member being provided with teeth adapted to engage said spring conta-cts independently of the teeth on said Wheel, a second adjust! able member for determining the number of teeth on said first mentioned adjustable meinbe'r eective for signaling purposes, and adjusting means including a tensioned shaft adapted in one position to move said first mentioned adjustable member relative to said Wheel and in another position to move said second mentioned adjustable member ed to be engaged by the teeth of said Wheel for making and breaking a circuit, an adjustable member for determining the num ber of teeth on said 'Wheel effective for signaling purposes, said adjustable member being provided With teeth adapted to engage said spring contacts independently of the teeth on said n Wheel, a second adjustable member for determining the number of teeth on said first mentioned adjustable member effective for signaling purposes, a rotatable sleeve, a shaft mounted in said sleeve, means for operating both said adjustable members from said. sleeve, and means for operating the second said shaft independently of the movement of the first named adjustable member.

ln witness whereof, hereunto subscribe my name this 13th day of June A. D., 1912.

JAMES A. lli/'GTTON Witnesses:

G. M. CAMPBELL, YV. l?. HOFFMAN.

named adjustable member from 

